| Popis: |
The cadmium content of the I.A.E.A Fish Solubles [A-6 (1975)] was determined by the isotope dilution method. After dry-ashing and dissolution of the specimen, the cadmium was equilibrated with a known amount of 103Cd spike, isolated by ion exchange, purified by dithizone extraction, and converted to the sulfide form in 1% H3PO4 solution. The CdS precipitate was loaded onto a baked single rhenium filament for mass spectrometric analysis. The 103Cd/110Cd ratio was measured to compute the cadmium content of 0.278 ± 0.032 ppm (dry weight basis) in the Fish Solubles. |
